The surface rust looks bad but will clean up. The risers can be removed and separated to replace the gasket inbeteeen the bottom part and top part. If you take them to a machine shop then they can toumble them in a toumbler or a bead blaster. When you get them back they will look brand new.

I'm concerned about the ECM

How is the oil. Is there water in it. If so I bet the bearings and all parts inside have rust on them. Change the oil with the cheapest oil you can find.

Transmission obviously was submerged fully. I would change the fluid and see what happens. Don't be discouraged if you rebuild that too.

Pull the old spark plugs and take a look. Are they rusty inside. If so there is an old trick that I would suggest that removes carbon build up that I would do if they are real rusty...... Put all rusty plugs back in. Pour a couple of quarts of trans fluid down the intake and just let it sit a few days (do not crank while trans fluid is being poured or while the fluid is in the combustion chambers). Then remove the plugs and turn over the engine several times a couple days later. Put new plugs in and crank it up. And let it run. It will run real bad until all the trans fluid burns out. Yes smoke is going to come out exhaust.

Then change oil again after you run it 30 min to an hour. I would do the same for the tranny.

__________________Rollin' Gangsta Style

Quote:

Originally Posted by Thrall

"Heavy" beer is for wine drinkers that are too embarrassed to drink wine in front of their buddies. "Light" beer is a drinkin' man's beer!

Quote:

Originally Posted by thatsmrmastercraft

If you want bling like the big dawgs, ya gotta lift your leg a little higher.....

Starter and alternator are off at my local re manufacturing shop so waiting on the outcome on that ,waiting on a new ign switch ,rebuilt the raw water pump ,now removed a bit more trim ,fuel tank and cleaned out .
As advised I have bought some cheap motor oil to replace , the throttle body needs to come off as the throttle flap is seized shut and the whole assy is a real mess, also need to look at ECM ,all the sensors looms and plugs .

Really would like to get to the point it cranks over nicely so I can do a compression check .

A question ,
I have found under the fuel tank a horizontal mounted bracket on the l/h stringer with a micro switch attached (2 wires), not sure what this is for ,
Also a relay that is screwed to the floor just in front of the engine mount again not sure what this operates ,both items do not look original fitments, and looking around the fuel tank area I think that this boat has previously been run on gas,
So any ideas ?

Starter and alternator are off at my local re manufacturing shop so waiting on the outcome on that ,waiting on a new ign switch ,rebuilt the raw water pump ,now removed a bit more trim ,fuel tank and cleaned out .
As advised I have bought some cheap motor oil to replace , the throttle body needs to come off as the throttle flap is seized shut and the whole assy is a real mess, also need to look at ECM ,all the sensors looms and plugs .

Really would like to get to the point it cranks over nicely so I can do a compression check .

A question ,
I have found under the fuel tank a horizontal mounted bracket on the l/h stringer with a micro switch attached (2 wires), not sure what this is for ,
Also a relay that is screwed to the floor just in front of the engine mount again not sure what this operates ,both items do not look original fitments, and looking around the fuel tank area I think that this boat has previously been run on gas,
So any ideas ?

Thanks

Kevin

what lead you to think that it was on anything other than gas

and this is a pic of an 1988 Chevrolet Throttle Body from a truck (for reference)